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www/plugins/input-mask/jquery.inputmask.regex.extensions.js 9.17 KB
1ea3b987   Administrator   maby first commit
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  /*
  Input Mask plugin extensions
  http://github.com/RobinHerbots/jquery.inputmask
  Copyright (c) 2010 - 2014 Robin Herbots
  Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php)
  Version: 0.0.0
  
  Regex extensions on the jquery.inputmask base
  Allows for using regular expressions as a mask
  */
  (function ($) {
      $.extend($.inputmask.defaults.aliases, { // $(selector).inputmask("Regex", { regex: "[0-9]*"}
          'Regex': {
              mask: "r",
              greedy: false,
              repeat: "*",
              regex: null,
              regexTokens: null,
              //Thx to https://github.com/slevithan/regex-colorizer for the tokenizer regex
              tokenizer: /\[\^?]?(?:[^\\\]]+|\\[\S\s]?)*]?|\\(?:0(?:[0-3][0-7]{0,2}|[4-7][0-7]?)?|[1-9][0-9]*|x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4}|c[A-Za-z]|[\S\s]?)|\((?:\?[:=!]?)?|(?:[?*+]|\{[0-9]+(?:,[0-9]*)?\})\??|[^.?*+^${[()|\\]+|./g,
              quantifierFilter: /[0-9]+[^,]/,
              definitions: {
                  'r': {
                      validator: function (chrs, buffer, pos, strict, opts) {
                          function regexToken() {
                              this.matches = [];
                              this.isGroup = false;
                              this.isQuantifier = false;
                              this.isLiteral = false;
                          }
                          function analyseRegex() {
                              var currentToken = new regexToken(), match, m, opengroups = [];
  
                              opts.regexTokens = [];
  
                              // The tokenizer regex does most of the tokenization grunt work
                              while (match = opts.tokenizer.exec(opts.regex)) {
                                  m = match[0];
                                  switch (m.charAt(0)) {
                                      case "[": // Character class
                                      case "\\":  // Escape or backreference
                                          if (opengroups.length > 0) {
                                              opengroups[opengroups.length - 1]["matches"].push(m);
                                          } else {
                                              currentToken.matches.push(m);
                                          }
                                          break;
                                      case "(": // Group opening
                                          if (!currentToken.isGroup && currentToken.matches.length > 0)
                                              opts.regexTokens.push(currentToken);
                                          currentToken = new regexToken();
                                          currentToken.isGroup = true;
                                          opengroups.push(currentToken);
                                          break;
                                      case ")": // Group closing
                                          var groupToken = opengroups.pop();
                                          if (opengroups.length > 0) {
                                              opengroups[opengroups.length - 1]["matches"].push(groupToken);
                                          } else {
                                              opts.regexTokens.push(groupToken);
                                              currentToken = new regexToken();
                                          }
                                          break;
                                      case "{": //Quantifier
                                          var quantifier = new regexToken();
                                          quantifier.isQuantifier = true;
                                          quantifier.matches.push(m);
                                          if (opengroups.length > 0) {
                                              opengroups[opengroups.length - 1]["matches"].push(quantifier);
                                          } else {
                                              currentToken.matches.push(quantifier);
                                          }
                                          break;
                                      default:
                                          // Vertical bar (alternator) 
                                          // ^ or $ anchor
                                          // Dot (.)
                                          // Literal character sequence
                                          var literal = new regexToken();
                                          literal.isLiteral = true;
                                          literal.matches.push(m);
                                          if (opengroups.length > 0) {
                                              opengroups[opengroups.length - 1]["matches"].push(literal);
                                          } else {
                                              currentToken.matches.push(literal);
                                          }
                                  }
                              }
  
                              if (currentToken.matches.length > 0)
                                  opts.regexTokens.push(currentToken);
                          }
                          function validateRegexToken(token, fromGroup) {
                              var isvalid = false;
                              if (fromGroup) {
                                  regexPart += "(";
                                  openGroupCount++;
                              }
                              for (var mndx = 0; mndx < token["matches"].length; mndx++) {
                                  var matchToken = token["matches"][mndx];
                                  if (matchToken["isGroup"] == true) {
                                      isvalid = validateRegexToken(matchToken, true);
                                  } else if (matchToken["isQuantifier"] == true) {
                                      matchToken = matchToken["matches"][0];
                                      var quantifierMax = opts.quantifierFilter.exec(matchToken)[0].replace("}", "");
                                      var testExp = regexPart + "{1," + quantifierMax + "}"; //relax quantifier validation
                                      for (var j = 0; j < openGroupCount; j++) {
                                          testExp += ")";
                                      }
                                      var exp = new RegExp("^(" + testExp + ")$");
                                      isvalid = exp.test(bufferStr);
                                      regexPart += matchToken;
                                  } else if (matchToken["isLiteral"] == true) {
                                      matchToken = matchToken["matches"][0];
                                      var testExp = regexPart, openGroupCloser = "";
                                      for (var j = 0; j < openGroupCount; j++) {
                                          openGroupCloser += ")";
                                      }
                                      for (var k = 0; k < matchToken.length; k++) { //relax literal validation
                                          testExp = (testExp + matchToken[k]).replace(/\|$/, "");
                                          var exp = new RegExp("^(" + testExp + openGroupCloser + ")$");
                                          isvalid = exp.test(bufferStr);
                                          if (isvalid) break;
                                      }
                                      regexPart += matchToken;
                                      //console.log(bufferStr + " " + exp + " " + isvalid);
                                  } else {
                                      regexPart += matchToken;
                                      var testExp = regexPart.replace(/\|$/, "");
                                      for (var j = 0; j < openGroupCount; j++) {
                                          testExp += ")";
                                      }
                                      var exp = new RegExp("^(" + testExp + ")$");
                                      isvalid = exp.test(bufferStr);
                                      //console.log(bufferStr + " " + exp + " " + isvalid);
                                  }
                                  if (isvalid) break;
                              }
  
                              if (fromGroup) {
                                  regexPart += ")";
                                  openGroupCount--;
                              }
  
                              return isvalid;
                          }
  
  
                          if (opts.regexTokens == null) {
                              analyseRegex();
                          }
  
                          var cbuffer = buffer.slice(), regexPart = "", isValid = false, openGroupCount = 0;
                          cbuffer.splice(pos, 0, chrs);
                          var bufferStr = cbuffer.join('');
                          for (var i = 0; i < opts.regexTokens.length; i++) {
                              var regexToken = opts.regexTokens[i];
                              isValid = validateRegexToken(regexToken, regexToken["isGroup"]);
                              if (isValid) break;
                          }
  
                          return isValid;
                      },
                      cardinality: 1
                  }
              }
          }
      });
  })(jQuery);